<template>
  <div class="login_container">
      <!-- 登录组件 -->
      <div class="login_box">
          <!-- 头像 -->
          <div class="avatar_box">
              <img src="../assets/logo.png" alt="logo">
          </div>
          <!-- 登录表单区域 -->
          <el-form ref="form" :model="form" :rules="rules" label-width="0px" class="login_form">
              <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="form.username" prefix-icon="el-icon-s-custom"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input v-model="form.password" prefix-icon="el-icon-s-cooperation" type="password"></el-input>
                </el-form-item>
                <el-form-item class="btns">
                    <el-button type="primary" @click="onSubmit(rules)">登录</el-button>
                    <el-button type="info" @click="resetForm(rules)">重置</el-button>
                </el-form-item>
                </el-form>
          <!-- <el-button>取消</el-button> -->
      </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
    //表单数据对象
      form:{
          username:'admin',
          password: '123456'
      },
      //表单验证规则对象
      rules:{
          username: [
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
          ],
          password: [
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 3, max: 18, message: '长度在 3 到 18 个字符', trigger: 'blur' }
          ]
      }
    }
  },
  methods: {
      onSubmit(rules) {
        console.log('submit!');
        this.$refs.form.validate(async valid=>{
            console.log(valid)
            if(!valid) return;
            let {data:res} = await this.$http.post('login',this.form)
            console.log(res)
            
            if(res.meta.status === 200){
                this.$message({
                message: '恭喜你，登录成功！',
                type: 'success'
                });
            }else{
                return this.$message.error('错了哦，登录失败！');
            }
            if(valid){ 
                //保存token
                window.sessionStorage.setItem('token',res.data.token)
                //跳转页面
                this.$router.push('/home')
            }
        })
      },
      resetForm(rules) {
          this.$refs.form.resetFields()
      }
  }
}
</script>

<style lang="less" scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
    .login_box{
        width: 450px;
        height: 300px;
        background-color: #fff;
        border-radius: 3px;
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%,-50%);
        .avatar_box{
            height: 130px;
            width: 130px;
            border: 1px solid #eee;
            border-radius: 50%;
            padding: 10px;
            box-shadow: 0 0 10px #ddd;
            position: absolute;
            transform: translate(-50%,-50%);
            background-color: #fff;
            left: 50%;
            // top: 50%;
            img{
                width: 100%;
                height: 100%;
                border-radius: 50%;
                background: #eee;
            }
        }
    }
}
.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content: flex-end; //水平居右
}
</style>
